Simulating the charged charmoniumlike structure $$Z_c(4025)$$ Z c ( 4025 )

Abstract

Inspired by the recent observation of the charged charmoniumlike structure $$Z_c(4025)$$ , we explore the $$Y(4260)\rightarrow (D^*\bar{D}^*)^- \pi ^+$$ decay through the initial-single-pion-emission mechanism, where the $$D^*\bar{D}^*\rightarrow D^*\bar{D}^*$$ interaction is studied by the ladder approximation, including the non-interacting case. Our calculation of the differential decay width for $$Y(4260)\rightarrow (D^*\bar{D}^*)^- \pi ^+$$ indicates that a charged enhancement structure around $$D^*\bar{D}^*$$ appears in the $$D^*\bar{D}^*$$ invariant mass spectrum for this process, which might correspond to the newly observed $$Z_c(4025)$$ structure.